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From "Matthias J. Sax (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-6248) Enable configuration of internal topics of Kafka Streams applications
Date Thu, 23 Nov 2017 21:49:00 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-6248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16264806#comment-16264806
] 

Matthias J. Sax commented on KAFKA-6248:
----------------------------------------

It is compatible: https://docs.confluent.io/current/streams/upgrade-guide.html#compatibility

If this does what you need, would you mind close this as "no a problem"?

> Enable configuration of internal topics of Kafka Streams applications
> ---------------------------------------------------------------------
>
>                 Key: KAFKA-6248
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6248
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Tim Van Laer
>            Priority: Minor
>
> In the current implementation of Kafka Streams, it is not possible to set custom configuration
to internal topics (e.g. max.message.bytes, retention.ms...). It would be nice if a developer
can set some specific configuration. 
> E.g. if you want to store messages bigger than 1MiB in a state store, you have to alter
the corresponding changelog topic with a max.message.bytes setting. 
> The workaround is to create the 'internal' topics upfront using the correct naming convention
so Kafka Streams will use the explicitly defined topics as if they are internal. 
> An alternative is to alter the internal topics after the Kafka Streams application is
started and has created its internal topics. 



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